Window-wiper.



J. W. GAIN. WNDoW WIPER.

APPLICATION FILED JUNE 22, 1911.

Patented muy 16, 1912.

rossetti..

entran estara JOHN W. esta', o

WENDU'W-WIPER.

To oZZ whom 'it may concern.'

lle it known that l, Joint W. GAIN, a citizen of the United States, residing at Chicago, in the county ot Cook and State of Illinois, have invented certain newl and useful Improvements in llindow-l/Vipers, of which the following is a specification.

his invention relates to a Window wiping device for vehicles. y

To those skilled in the art to which it per tains it is l\'no\vn that inist., rain, sleet, frost or snony on the outside of the Window in front of the engineer, inotorinan, chautleur or driver of a steam, electric, cable, gasolene or `otherwise propelled vehicle, interferes with the vision of such engineer, Inotorman, chauffeur or driver, and that delays and accidents are caused thereby.

The object of this invention is to obtain a window wiper for the outsideof the \vin dmv which is in front of the person who is directly in control of thenioveinent of a vehicle of the kind mentioned.

ln the drawing1 Figure l is a front elevationotI the outside of the middle Window of an ordinary electric street car with the device embodying my invention illustrated in elevation in operative position thereon. Fig. 2 is a vertical section on an enlarged scale, of the window, of a car and ot a device embodying the invention, on line 2-2 of Fig. l, viewed in the direction indicated by the arrows. Fig. 3 is a vertical section on an enlarged scale, oi the window of a car and of a device embodying" the invention, on line 3 3 ot' Fig. l, viewed in the direction indi-` cated by the arrows. Fig. l is a section, on

an enlarged scale, on line 1 4 of Fig. 2,

viewed in the direction indicated by the arrows. Fig. 4|5 is a traglnental view, on an enlarged scale, of one of the upper corners` of the device. Fig. 6 is a detail View, partly in section,l on an enlarged scale, of the upper portion of one side of the device. Fig.

.7 is a sectional detail view of the upper end of the middle guide Way illustrated in Fie'. 2, looking' tovvardtlie right as viewed in said Fig. 2. Fig. -8 is a sectional view of the track engaging mechanism on the 'wiping base of the device,.and ot a portion of said base. Fig. Sl is a central sectional view of a four Way cock forming an element ot the device and Fig'. 10 is a sectional View of the cock illustrated in ll1 ig. 9, on line 10-10 of Fig. 9, viewed in the direction indicated by tlie arrows.

Specification of Letters Patent.

Application tiled .lune 22, 1911. Serial No. 'vt.

satelites. aan to, lana Similar letters refer to similar parte throughout the several views.

` A is a Window sash and c, c, glass in the sash A.

B is a portion ont a frontot' a car.

C, C, are cylinders, provided with. pistons and D, D, are the Steins of said pistons.

E, E, are bases which are attached respectively to the car front B at the side of the window sash A. Base E is provided with the ribs c and e', which are parallel and with groove F between ribs e, e.

f is the tace of the rib e which is adjacent to the ear Window, and on which the roller G (see Figs. 2, 3, and 6) travels when the Wiper ot the device is moved downward.

H is a gear rack on base E.

,71y is a slot in base ld. Slot 7L extends from near one end of the base to near the other end thereof.

lf is a rod which is attached at its ends to the ends of the piston rods D.

J is a tube mounted on rod l. The tubeml is rotatable on rod l, and extends through the slot 7a. As' the piston stems D, l), move up and down in the operation of the device the tube J inoves freely in said slot ZL of base lll.

K, K, are gears which are rigidly secured to the ends of tube J. Gears K, K, mesh with racks H (see Figs. 1, 'f land 5).

y L is a four way cock and l] (see- Fig. 10) isl a pipe from a source of' supply of air under pressure.

Z is the plug of cock l). lllug Z is; provided with recesses Z', Z, and with handle Z..

M, M', are pipes which are provided with branch pipes m, and m', arranged to torni conduits from tour .way cock L to the ends 'the pipe L is put into communication with pipe M', by turning,- plug Z of cock li to the position indicated by broken lines ZW` in Fig. 10, the pipe M is put into coinrnunication With spill Avvay N. By this arrangement when air unser pressure is admitted to one end of cylinders C (by turning plug' Z), the

los

air in said cylinders on the other side of the pistons may flow from the cylinders through the branch pipes connected to the other ends of said cylinders, and flow to Waste through pipe h.

O is a base board pivotally mounted on tube J by bearing I.

Q is a rubber wiper in board O. rlhe roller Gr, hereinbefore referred to as ltraveling on track f and in groove F, is mounted on spindle R, which is longitudinally movable in bearings R, R', and said bearings are attached to base board O (see Figs. 2, 3,A

R is received on the inclined plane S and' said boltis forced inward by said inclined plane, carrying therewith the roller G.

S is a curved Wall Which guides the roller Gr into the groove F, and S is the discharge end of inclined plane S. )Vhen roller G passes from the discharge end S of inclin'edplane S it is delivered into the groove F.

T is an inclined plane at the upper end of the groove F which discharges the roller G onto side, face or track f of rib e, as the piston stems D reach the upper end of their travel (see Figs. 2 andG). The rib e is eut through at t to permit roller G to move from groove F on to track f, (see Fig. 7). The function of the tube J, gears K, and rack H are to maintain the rod I at right angles to the piston stems D, D, particularly when any obstruction is in or on the slot 71., groove F or track f.

The operation is, as either piston stem D moves up or down the gear K adjacent thereto is turned by its engagement With rack H, thus turningl the tube J to ivhich vthe gears K are rigidly secured, and by the turning of said tubel the gear at the other end thereof travels along` its rack an equal distance to the travel of the one which ,is moved by the piston stem.

The operation' of the device is :MWlien air is admitted to cylinders C, below the pist-ons therein stems D are raised, raising rod l, tube J and baseboard O. The roller G is in groove F as piston stems D move up and Wiper Q is not in contact with glass incas?? a. As piston stems D reach Athe upward limit of their movement roller G is moved onto track f (by inclined plane T), and Wiper Q is thereby brought into Contact with glass (l. The handle Z" of cock' L is then turned to release the air under the pistons in cylinders C., C, andto admit air above said pistons. The piston stems D are moved down carrying the rod I, tube J and base board (l, with wiper Q in contact-With glass a, cleaning said glass. .As piston stems D reach the downward limit of their movement the rollers G are transferred to groove F by the inclined plane S and wiper Q is thereby moved from Contact with' glass n. The several parts of the device are thus placed in position to have the operation thereof repeated when desired. i

l. In a Window cleaner, the combination with a rod and means to simultaneously ad-` vance both ends thereof at the same rate and in the same direction, of a sleeve pivotally mounted thereon, a lwiping element carried by said sleeve, movable abutments carried by said vwiping elementy means to yieldingly hold said abutments in an ad vanced position, parallel tracks with which said movable abutments are engageable, means at the, tops and bottoms of said tracks to transfer said yielding abutment from one track to the other and carry the Wiper into andl out of contactwith a window.

2. In a Window cleaner, the combination with a rod and means to simultaneously advance both ends thereof at the same rate a/n'd in the saine direction, of a sleeve pivotally mounted thereon, a wiping element carried by said sleeve, movable abutments carried by said wiping element, means to yieldingly hold said abutndnts in an advanced position, parallel tracks with which said movableabutmcnts are engageablc, inclined planes at the upper ends of one and at the lower vends of the other of said parallel tracks, the receiving ends of said inclined planes in one of the parallel tracks and the discharging ends in the other, said inclined planes arranged to transfer the yielding abutments from one lto the lother ofthe parallel tracks and carry thejviper into and out of contact with a Window.

1 v JOHN W. GAIN.

In the presence of* HENRY EcnnAnD'r, Cin-mees TURNER BROWN. 

